U.S. solar market tops 10 GW in 2018, again

For the third year in a row, the U.S. solar industry installed double-digit gigawatts (GW) of solar PV capacity, with 10.6 GW coming online in 2018, according to the latest statistics from Wood Mackenzie Power & Renewables and the Solar Energy Industries Association (SEIA).

It’s a 2 percent decrease from 2017 but forecasts indicate the market rebounding in the years ahead, said the groups. SEIA’s president and CEO, Abby Hopper said the 2 percent decrease was due to “growing pains” which can be attributed to solar tariffs.

“The total amount of solar installed in America is on track to more than double in the next five years, proving solar’s resiliency and its economic strength. It’s clear, this next decade is going to be one of significant growth,” she added.

2019 looking good, especially Texas and Florida

Total installed PV capacity in the U.S. is expected to rise by 14 percent in 2019 with annual installations reaching 15.8 GW in 2021. In addition to a market outlook, the SEIA and Wood Mackenzie released a report that details how the industry performed in 2018 in each segment.

In 2018, non-residential PV saw an annual decline of eight percent due to policy transitions in major markets. Utility-scale solar underwent a seven percent contraction in 2018, largely related to Section 201 tariffs.

Yet, while annual growth fell in both the non-residential and utility-scale solar sectors, residential solar growth stabilized in 2018 after the previous year’s contraction. The U.S. residential solar market has now seen five consecutive quarters of modest growth, and the fourth quarter of 2018 was the largest quarter for residential solar in two years. Nearly 315,000 households added solar in 2018.

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Texas and Florida, two states with generally low solar penetration, stood out in 2018, adding more capacity than some of the highest penetration states. These emerging solar markets are poised to become the engines of growth for residential solar in the U.S.

Solar was 29 percent of new electricity capacity in 2019

In total, solar PV accounted for 29 percent of new electricity generating capacity additions in 2018, slightly less than in 2017 due to a surge in new natural gas plants. However, in 2018, 13.2 GW of utility-scale solar power purchase agreements were signed, pushing the contracted project pipeline to its highest point in the history of U.S. solar.

Wood Mackenzie also increased its five-year forecast for utility PV by 2.3 GW since Q4 2018. This was the result of a large volume of project announcements, the inclusion of more solar in long-term utility resource planning and an increase in project development driven by renewable portfolio standards and growing corporate interest.

Other key findings from the report include:

In Q4 2018, the U.S. solar market installed 4.2 GWdc of solar PV, a 139 percent increase from Q3 2018 and a 4 percent increase from Q4 2017. This brought the annual total to 10.6 GWdc, 2 percent lower than 2017.

For the sixth straight year, solar was one of the top two sources of new electricity generating capacity in the U.S.

Cumulative operating solar photovoltaic capacity now stands at 62.4 GWdc, about 75 times more than was installed at the end of 2008.

After a year in which residential solar experienced 15 percent contraction, 2018 marked a year of rebound as the market grew by 7 percent. Q4 was the largest quarter for the residential solar segment in two years, a sign that the residential market is stabilizing. In total, 314,600 new residential PV systems were installed in 2018.

Non-residential PV saw an annual decline of 8 percent, largely due to policy shifts in states like California and Massachusetts.

There were 6.2 GWdc of utility solar installed in 2018, accounting for 58 percent of total U.S. annual capacity additions.

After the uncertainty of the Section 201 tariffs passed, 13.2 GWdc of utility solar PPAs were signed in 2018, though mostly with expected commercial operations dates in years after the tariffs have stepped down. The contracted pipeline peaked in Q3 2018 at 25.3 GWdc, the highest in the history of U.S. solar.

Total installed U.S. PV capacity will more than double over the next five years, with annual installations reaching 15.8 GWdc in 2021 prior to the expiration of the residential federal Investment Tax Credit (ITC) and a drop in the commercial tax credit to 10 percent for projects not yet under construction.

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